Replace scoped_ptr with unique_ptr in webrtc/common_audio/

webrtc/common_audio/lapped_transform.h

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_COMMON_AUDIO_LAPPED_TRANSFORM_H_
 #define WEBRTC_COMMON_AUDIO_LAPPED_TRANSFORM_H_
 
 #include <complex>
+#include <memory>
 
-#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/common_audio/blocker.h"
 #include "webrtc/common_audio/real_fourier.h"
 #include "webrtc/system_wrappers/include/aligned_array.h"
 
 namespace webrtc {
 
 // Helper class for audio processing modules which operate on frequency domain
 // input derived from the windowed time domain audio stream.
 //
 // The input audio chunk is sliced into possibly overlapping blocks, multiplied
@@ skipping 78 matching lines @@
 
   const size_t num_in_channels_;
   const size_t num_out_channels_;
 
   const size_t block_length_;
   const size_t chunk_length_;
 
   Callback* const block_processor_;
   Blocker blocker_;
 
-  rtc::scoped_ptr<RealFourier> fft_;
+  std::unique_ptr<RealFourier> fft_;
   const size_t cplx_length_;
   AlignedArray<float> real_buf_;
   AlignedArray<std::complex<float> > cplx_pre_;
   AlignedArray<std::complex<float> > cplx_post_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_COMMON_AUDIO_LAPPED_TRANSFORM_H_